enable display of depth image thumbnails in rqt_bag
Fix topic type retrieval for multiple bag files
Refactor popup management and close callbacks
Merge pull request #274 from jennan/groovy-devel

enable display of depth image thumbnails in rqt_bag
Merge pull request #279 from trainman419/fix_bag_topic_type

rqt_bag: Fix topic type retrieval for multiple bag files
Merge pull request #280 from trainman419/close_bag_plugin

rqt_bag: Refactor popup management and close callbacks
Make the right-click menu more useful